Description
The Genuine Mercedes-Benz Belt Tensioner (Part Number: A2742001600) is a precision-engineered OEM component designed to maintain optimal tension on the engine’s drive belt. It ensures efficient power transmission to key accessories such as the alternator, air conditioning compressor, and power steering pump.
Built to Mercedes-Benz’s exacting standards, this belt tensioner assembly minimizes belt slippage, reduces noise, and extends the lifespan of the serpentine belt system. Its robust construction and precision spring mechanism deliver consistent tension control and reliable performance over time.
Replacing a worn or noisy tensioner with this genuine part restores smooth belt operation, preventing premature wear of engine accessories and maintaining your vehicle’s factory-quality performance.
Features:
Genuine OEM Mercedes-Benz part (A2742001600)
Maintains consistent drive belt tension and alignment
Prevents belt slippage and noise
Reduces stress on engine accessories
Made from high-quality, durable materials
Ensures long-lasting, reliable performance
Perfect OEM fit and easy installation
Compatible with:
Select Mercedes-Benz models equipped with 1.6L, 1.8L, or 2.0L petrol engines (commonly found in A-Class, C-Class, E-Class, CLA, and GLA models – verify compatibility using your VIN).

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